The intelligence officers contend that pentagon lawyers prevented them from giving the FBI the information that they had. In the spring of 2001 "Able Danger" was disbanded and the techniques they were using to detect terrorist risks dismantled. Here's a quote from Shaffer describing his thoughts when he learned that Atta and the three other hijackers they identified had flown hijacked planes into the World Trade Center:
We all realized that we had these guys. And then we started asking some questions to ourselves. Why was Able Danger, why was this whole technology piece turned off four months before the 9/11 attacks? In the spring of 2001, it was dismantled, all, completely...
Shaffer asks an important question. Why was "Able Danger" dismantled? And, why didn't the 9/11 Commission follow-up on the information that Shaffer and others gave them about "Able Danger?"
NOTE: The interview with Shaffer is about 2/3 of the way into the transcript (after the T. Boone Pickens interview). There is more disturbing information in the interview with Shaffer. I don't have the time or the stomach to comment upon all of it.